Gulyantsi is a successor of an ancient castrum that had originated on the left bank of Utus River /Thracian name of Vit River/, as a wayside post-roman campaign in west to east. The Turks named the settlement Giulian /Rose/ because of the white and red roses, that had heaped the yards of the region. With mainstream of the time the appellation is being translated in Giuliande,Giuliance next to present Gulyantsi. In 4 of september 1974 whit a decree 1942 of the state council of the demotic republic of Bulgaria, Gulyantsi is announced to be a city.

In 1974 Gulyantsi is a center of a small municipality in which they enter: Lenkovo, Shiakovo,Kreta and Dabovan. Settlement system Gulyantsi with 9 settlements: Gigen, Brest, Dabovan, Zagrazhden Milkovitsa, Lenkovo, Dolni Vit, Somovit, Gulyantsi and three authorities - Iskar, Kreta and Shiyakovo: is being gathered in 5.12.1977. With a decree of the state board No: 2295 from 26.12.1978, Gulyantsi becomes an administrative central city. It operates 12 city halls to a municipality.